NoMoreDupes for Outlook is an Outlook add-in to clean your Outlook duplicates. Not only contacts or emails are supported. All items of Outlook are supported. You can even search across folders. Perhaps you have the same contact in different folders. Search for it - find it - delete it automatically. You can get rid of your doublets in seconds even if you have a big Outlook data file.
What's new in this version:
Version 184.108.40.206 has fixed minor issues.